Environmental assessment of three egg production systems--Part I: Monitoring system and indoor air quality

Poultry Science
Y ZhaoH Xin

Abstract

To comprehensively assess conventional vs. some alternative laying-hen housing systems under U.S. production conditions, a multi-institute and multi-disciplinary project, known as the Coalition for Sustainable Egg Supply (CSES) study, was carried out at a commercial egg production farm in the Midwestern United States over two single-cycle production flocks. The housing systems studied include a conventional cage house (200,000 hen capacity), an aviary house (50,000 hen capacity), and an enriched colony house (50,000 hen capacity). As an integral part of the CSES project, continual environmental monitoring over a 27-month period described in this paper quantifies indoor gaseous and particulate matter concentrations, thermal environment, and building ventilation rate of each house. Results showed that similar indoor thermal environments in all three houses were maintained through ventilation management and environmental control. Gaseous and particulate matter concentrations of the enriched colony house were comparable with those of the conventional cage house. In comparison, the aviary house had poorer indoor air quality, especially in wintertime, resulting from the presence of floor litter (higher ammonia levels) and hens' activ...Continue Reading

References

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Citations

Oct 21, 2015·Animals : an Open Access Journal From MDPI·Bruce DavidRandi Oppermann Moe
Oct 21, 2015·Animals : an Open Access Journal From MDPI·Bruce DavidCecilie Mejdell
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Jul 1, 2021·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Eui-Chul HongJi-Hyuk Kim

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